Pulse Oximeter Team Progress Report #10 4/3/09 – 4/10/09 Team Members Bogdan Dzyubak – Communicator Joe Helfenberger—BWIG Jonathan Meyer—Leader Matthew Parlato—BSAC Clients Amit Nimunkar Jonathan Baran Advisor Dr. John Webster PhD. A Problem Statement The purpose of this project is to develop a low-cost pulse oximeter probe for use in developing countries. It will be integrated with the MedCal, a handheld processing device which will record and display patient data. The oximeter must be rugged, durable, inexpensive, and must deliver data to the MedCal as an analog signal. A Team Goals Previous goals for this week - Identify and acquire a suitable plastic - Have SolidWorks draft reviewed by Eamon Bernardoni - Begin prototyping Goals for next week - Acquire a suitable spring, with a low enough spring constant that the probe can be clipped on an ear for an hour without damaging the tissue - Construct initial prototype - Contact mechanics lab for testing - Characterize LEDs and pick calibrating resistors This week’s accomplishments - Switched to a probe design based on a clothespin, due to problems with the previous design. - Began prototyping, identified need for a weaker springProject Schedule The table below is a Gnatt chart of the projected timeline. Dark colors are used for completed stages, and light colors for incomplete stages. Tasks January February March April May 23 30 6 13 20 27 6 13 20 27 3 13 17 24 1 8 Project Development Research Brainstorm Design Prototype Deliverables Progress reports Midsemester presentation Midsemester report Final presentation Final report Communication Advisor Meetings Client Meetings Website Difficulties We are having difficulty acquiring a spring with a low enough spring constantActivities Date Time Team member(s) Activities 4.6.09 0.45 h Team Team meeting, switched to clothespin design 4. 8.09 0.45 h Matt Acquired shop certification 4. 8.09 1.75 h Joe Worked on shop certification 4. 9.09 ~1 h Jonathan Worked on shop certification ~~~~~~ ~ Bogdan Worked on shop certification 4. 9.09 5.5 h Bogdan, Worked on prototype 4. 9.09 3.083 h Matt, Joe Worked on prototype 4. 9.09 1.17 h Jonathan Worked on prototype 4.10.09 ~2 h Team Attended Tong lecture, Met with Dr. Webster, Met with Amit Expenses Items Cost 4 photodiodes (2mm×2mm) <
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